Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
immobilien-klapper.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 05:11:22 UTC · ↺ Refresh
MX Hostnames
- hosting4.netxp.de
MX Priorities
- hosting4.netxp.de: 100
A / AAAA Records
- 195.243.107.188 ↩ hosting4.netxp.de
Mail Server IPs
- 195.243.107.188 ↩ hosting4.netxp.de
SOA Record
Raw SOA
ns.netxp-online.de hostmaster.immobilien-klapper.de 1774457346 16384 2048 1048576 2560
Primary NS (mname)
ns.netxp-online.de
Admin Email (rname)
hostmaster@immobilien-klapper.de
Serial
1774457346
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
nsb9.schlundtech.de
ns.netxp-online.de
ns.netxp.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms69501703
- SPFv=spf1 mx include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for immobilien-klapper.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits